Warren w



W. W. GORE INTERNAL COMBUSTION ENGINE Mar. 6, 1923.

2 sheets-sheet 1 Filed Sept 25 1918 mr L Mar. 6, 1923.

1,447,245 w. w-. GORE INTERNAL COMBUSTION ENGINE Filed Sept 25, 1918 2 sheets-sheet 2 717955- flu/6525f- Patented Mar. 6, 1923.

UNITED STATES PATENT orr cs,

WARREN w. GORE, or mmso v, wis'coNsm,' AssIGNon :ro ruLLnn & JOHNSON MFG. 00., or MADISON, Wisconsin, A CORPORATION or WISCONSIN.

m'rnamm-oomausrron Application filed September 25, 1918. Serial No. 255,560.

Toallwhomitmayconcem:

Be it known that I, WARREN :W. Gonn, a citizen of the United States, residing at Madison, in the county of Dane and State of Wisconsin, have invented certain new; and

useful Improvements in Internal-Combustion Engines, ofwhich the following is a specification. This invention relates to-internal combustion engines,iand has .refer'ence moreiparticularly, although notexclusively to singlecylinder stationary engines of them right typesuch as are extensively employe as a power unit in domestic use for'pumping wa ter, generating electric current,--etc...-;

, Sincegas engines-oi this character are'ger erally owned and; used :by] personanotpartic'tilarly skilled --in their constructio lijtmd operation, it is desirablew'to make them not only i as simple, durable and" completely automatic; as possible, 'butalso; to make them easy of access, especially as ;regar dsthe crank-chamber andits containedpar'ts, for inspection cleaning,- adj ust-ment; and repairs when necessary, with ;a minimum-of. abor and trouble; in the fd-isassemblin' ,f and reassembling of parts; and ;one of t e ob jects of the present invention is to 'provide an internalcombustionfengi-ne- ,possessing in a' superior degree the advantages stated. More specifically, one-object-of'the invention is to provide a 'gasjenglneof the enclosed crank-case type, wherein the crank-case is provided with -arernovable side or cover' plate carryingthe-c'am-shaft and the driving mechanis'mfbf the lattergsaid driving mechanism being automatically engaged with and disengagedfrom thecrankpin of the engine shaft when-the detachable side of the crank-case is applied and removed. In the most complete and approved form of the invention herein illustrated this detachable side may also carry the governing mechanism of the engine throttle. Another object of the invention is to provide in the crank-case an improved oil pan through which the lower end of the connecting rod sweeps to distribute oil to the cylinder walls on the splash principle,- with a pump also located in the crank-case to maintain a'supply of oil to said pan, andapump-driving mechanism carried by said removable side of the crank-case and automatically registering with the oil-pump plunger when the removable side is Eapplied to the crank-case.

Other objects-and advantages secured by the invention will be apparent to those skilled in the art from the following detailed de'scri'ptiom'takendn connection with the accompanying drawings wherein I have illustrated one. ractical embodiment of the in vention,:an in-which" Fig.1 is-a side-elevation of theengine;'

2-is a vertical-section, substantially on the 'oflset line 2-2 of'Fig. 1; a

=-Fig. 3 is a. detail view from the inner side of the-detachable side' plate or cover of the crank-case and parts carried thereby. Referringto the drawings, 5 designates as anwentiretythe body of the crank-case formed with supporting feet 6, and having a large substantiallycircular opening 7 at one-side thereof. superposed on the crank case'is the engine cylinder 8, e nipped-with the -usual-piston,'intake and ex austvalves,

and ignition mechanism, with which parts 1 tliei usual'balance d crank-arm '11 carrying crank-pin;12 on which is mounted the lower end of the piston-rod 13f"v Keyed on the 'crnnlt shaft is a fi'y-wh'eel 14 carrying fan-blades 16 by which air is drawn down-through a hood-16' surrounding the cylinder to cool the latter. Beyond the'fly-wheel I-havc indi cated in Fig.2 an electric generator 17, the armature shaft 18 of which is mounted within the hollow engine shaft 10. Secured to one-side of the crank case and surrounding the fly-wheel and generator is a casing 19 formed at its outer end with a hearing 20 to receive a pulley-shaft extension of the engine shaft for power transmitting purposes. when the generator is not used.

21 designates a substantially circular plate that forms a cover or closure for the side opening 7 of the crank-case, beingdetachably secured to the rimof the opening by four machine screws 22 1). This plate 21 is formed with-an integral eccentric extension 21 that. with aportion of the plate 21. constitutes the inner-"wall. of-a 'gearcase, the outer Wall of which is-:formed by a flanged plate 23 secured to the-inner iwall by three machine screws 24. On and centrally of the main cover-plate 21 is an integral inwardly extending, boss 25 that fqrms -a-bearingjor a holldn: sliaftif fi, and in; aiiofieninglit?" of said plate 21 is fitted a bearing sleeve 28 f r. hevca msha ft 29,.the. .oth.er, end oi said. cam shaft'bejngJourgialedir a. ringsleeye. 30 mounted in the opposite wall of the Crankcase. Fast on the shafts 2Q'and -29 are-the usual two-to'one gears 31 and'32. Fast on the inner end of shaifizflfifia a skeletonidislr; 33 formed with a'peripheral notch 34: (Fig. 3) that fits overthmsquhred-outeii end :ofithe crank-pimlz beingl'eng igefl with and disengagedxfrom said eranlmpimuntlersa simplee'lateralimouegnentioflsaididisk;

Piwotedaonthe. tb'o governor elbow: levers; 35qgthfi-inriers ends: ofiiwhich ahiitiegaifist acslidih 'mdiiifiimonntediiu'fl-the honors shaitzw -aiiih againsta'the thrust of the governo'mlevevs hyt aisprin 37.- fl ed-nnrtendotrodfii iresses, through a. ball: 38;:agarinst an: rod 39 slidably 'ini bearingr'sleex e flz-sewmdrini-thi outer end: of:- sliaft' 26. The: outer. endaired-.39: ahiits .againsti-the clependinglarmAliof an elbomlever-pivoted at toga; brad etms on: the' outen sidevof. the gea'neoyer plate23,-. and toithe-ho'rizontwl anh .45: obsaid elbbwlwerzispivotedian upwardly-extep. '-rodA5itha.-bxsmnneeted to tl'l8:t 0m60fi:tr .cedxiretri-(not shown) nstable-spu'ingsfi'imoui ted on ihmeket 43.=hears sdmi nwrdlyron itheihorizohtal iarz'n 44-;0f thezelboivrleweuinditendsrtoiopehithe tllrottle-inioppositiomimthlezclosing tendeney oflbalbgoyeznoi a- Thor CEhTSBB-fiiQ-QMII'iQSsthG: two cams-47 and-484E" i 2)? forzopenatin :thel intake-and exhaustav i'essofethe-tcylin er, asmsual. in this type of: overheadsvalveengine. The cam shaft: also carries.- ameecentriei'49 for effecting the discharge stroke'ofian oil pump hereinafter descri Secured to: bottomnrall -of the era nkcase is-abrackiat'a'SO' thhtmupports an oil-man fil'through which the lower end "of the pisston-rotlnsweeps at revolution of the crankshaft. This-oil-pan. is supplied with oil; from thebottom ofithocmuk-easc by means. oiaqiumpi-eompris'uig :l-c;\ lind,er 52, rerticaliplu er. and: intake and discharge valves-Saran :55. Tlr'e=-plunger.is raised on its=.smztionnstrolie:by a spring 56.4mm] -is I presedfion its; working 0 r .;discharge stroke hya. rodST-thatis-grtrded brings-580a the inner.--faceof rt-hBL'COY'GP platefll: the upper end ofmid: rod .being held. in engagement with th'e -eccentrio.-49 by a-spring 59; On onesside --of"the pump' oylinder: is pivoted -a latch-.- 66,. the; lateralljn'benti upper: end of which-is adaptedjtoiengageover: the upper end of'itheep um g plungemto1holcl' the same do a st "i ;5fi-nirhenithe.fletachalzgle oow''riis's' "ange iwito-ahes'cmnleiase se as to bring the lou-vr and of H- into Working engagenu-ut with [ln' upper end of theplungep. While. this engagement is heingdffcted, the latch is kicked ofi in a lop 61 projecting inwardly from the inner face oicover plate 21.

My invention also includes an improved construction for effecting: the lubrication of the main shaft bearing and the return to the crank-case of the oil that works through themainibearing. Itwill be observed that the main bearing 9 project slightly inwardly of the side wall of the crank-case, and i's formed on its upper side with a ch!!! nelioirpoeket 62-to catch the oil splash and with-a-duot 63 leading from saidchannel on-poelretfto the-bearing. At the outer end of the-Inain bearing is an annular channel fii thaat oatehes the oil worlring through the bearing, and from the lowest point of-channel fik'ismrdrain'duet G5'drilled through a riI iuntler-the'main bearing and leading into tHe; -emnkease; the inner end of said duct beingip'rovidd with:a:check-valre 66 The cranl-case' is provided with the usual breather, which a-llows part of the air in the crank-case to discharge on the down stroke-'of the-piston. On-the up stroke of thepiston-a partial h acuum is formed in the cranb'ease-which tends to create a suction through the-bearings and also through the draimfl'uct-65; thus returning to the cranla 5 th= i1h 1 has worked through the begring -into the oil-collecting channel- Tlie-clleQk val've-66 prei-ents the oil from being-blown outwardly through the drain dixetfiS-on-the-down stroke of the piston. In-thig5= way a continuous circulation of oil through the main shaft bearing is maintained: Y

Tille'prineipal-advantage of the described construction-resides in the facility and ease WllZHWlilCh-flCCSS ma he. obtained to the interior of the crank-case for inspection. cleaning, adjustment. or repairs or an other-purpose \vith'out partially dismantlin or-di sassembl'ingthe various working parts of-t-hej engine: All that is ue es ary is to disconneet the governor-rod 45 from the throttle, remove the- {our machine screws 22; andwithdrawthe cover plate and gear casing witl'i tlie parts curried therein. as :1 unit; from the open side of the crank-Case. This automatically disconnects the driving disk 33 of the cam-shafgt and governor Tom the squared end nf the crank-pin hy a me slitling movemenl. 1n reassembling ii. is impossible to disarrange the proper timing of the-parts; since the registration of the notch 34 withth e end of the crank-pin 12 insures the' correct position of the valve ms- It'isbelieved that-the foregoing will make clearhto' those-skilled in the art" the novel structural fiitnrsg'hiode-of operation, and

advantages of the present invention. VVithout limiting the invention to the specific details shown and described for purposes of illustration,-

I claim- 1. In an internal combustion engine, the combination of a crank-chamber having an engine-shaft bearing in one side Wall thereof and a relatively large opening in the opposite side wall, an engine shaft mounted in said bearing, a crank-arm on said shaft, a crank-pin on said arm having a free end. a detachable cover-plate for said opening, and a cam-shaft and cam-shaft driving mechanism mounted on and removable as a unit with said cover-plate, said cam-shaft driving mechanism being antomatically engaged with and disengaged from the free end of said crank-pin as said cover-plate is applied to and removed from said opening.

2. In an internal combustion engine, the combination of a crank-chamber having an engineshaft bearing in one side Wall thereof and a relatively large opening in the opposite side well, an engine shaft mounted in said bearing, a crank-arm on said shaft, a crank-pin on said arm having a free end, a detachable cover-plate for said opening, and a cam-shaft and cam-shaftdriving mechanism mounted on and removable as a unit with said cover-plate, said cam-shaft driving mechanism including a peripherally notched rotatable element that is slidable into and out of driven engage- Inent with the free end of said crank-pin as said cover-plate is applied to and removed from said opening.

3. In an internal combustion engine, the combination of a crank-chamber having an engine-shaft bearing in one side Wall thereof and a relatively large opening in the opposite side wall, an engine shaft mounted in said bearing, a crank-arm on said shaft, :1. crank-pin on said arm having a free end, a detachable cover-plate for said opening, a cam-shaft and cam-shaft driving mechanism mounted on and removable as a unit with said cover-plate, said cam-shaft driving mechanism being automatically engaged with and disengaged from the free end of said crank-pin as said cover-plate is applied to and removed from said opening, and a governor mechanism mounted in said rover-plate and actuated by an element of said cam-shaft driving mechanism.

t. In an internal combustion engine, the combination of a crank-chamber having an engine-shaft bearing in one side wall thereof and a relatively large opening in the opposite side all, an engine shaft mounted in said bearing. a crank-arm on said shaft, a crank-pin on said arm having a free end, a detachable cover-plate for said opening, a cam-shaft and cam-shaft driving mechanism mounted on and removable as a unit with said cover-plate, said cam-shaft driving mechanism including a peripherally notched rotatable member journalcd in said cover-plate and slidable into and out of driven engagement with the free end of said crank-pin as said cover-plate is applied to and removed from said opening, and a governor mechanism mounted in said coverplate and actuated by said rotatable men1- ber of said cam-shaft driving mechanism.

5. In an internal combustion engine. the combination of a crank-chamber having an engine-shaft bearing in one side wall thereof and a relatively large opening in the opposite side Wall, an engine shaft mounted in said bearing, a crank-arm on said shaft. a crank-pin on said arm having a free end, a detachable cover-plate for said opening, a cam-shaftjournaled in said cover-plate, a gear-shaft also journaled in said cover-plate. co-operating gears on the outer ends of said shafts respectively, a gear-case attached to the outer side of said cover-plate, and a disk on the inner end of said gear-shaft having an opening to receive the free end of said crank-pin under a relative sliding movement as said cover-plate is applied to said opening of the crank-chamber. said cover-plate, shafts, gears, gear-case and disk being removable as a unit from said crank-chamber.

6. In an internal combustion engine. the combination of a crank-chamber having an opening in one of its side Walls, an oil-pan mounted in said crank-chamber beneath and in the path of travel of the lower end of the piston-rod, a pump in said crank-chamber for supplying oil to said oil-pan, a detachable cover-plate for said opening, and operating mechanism for said pump mounted on the inner side of said cover plate and removable as a unit with the latter.

7. In an internal combustion engine. the combination of a crank-chamber having an opening in one of its side Walls, an oil-pan mounted in said crank-chamber beneath and in the path of travel of the lower end of the piston-rod, a pump in said crank-chamber for supplying oil to said oil-pan, a detachable cover-plate for said opening, and operating mechanism for said pump, includ ing a shaft, an eccentric on said shaft, and a rod driven by said eccentric and actuating the-plunger of said pump. all mounted on, and removable as a unit with, said coverplate.

8. In an internal ocmbustion en ine, the combination of a crank-chamber iaving an opening in one of its side walls, an oil-pan mounted in said crank-chamber beneath and in the path of travel of the lower end of the piston-rod, a pump in said crank-chamber for supplying 011 to said oilpan, a spring to actuate the plunger of said pump on its suction stroke, a detachable cm er-phte 0r Said openihg, Opel-siting inechanisln, includ ng a, reciprocating rod engaging the outerend of said pump p1un gel, mounted on and removable as a unit with said cover plate, a lzitc'h eng gin said plunger to hold the'same ret'ra'cte g 'ari p'efmib engagement of said plunger by said rod as said cidve'r-pl'aite is applied to said opening, and nleans carried by said mier-pl ate for disengaging said la'tch from said plunget after said rod has been engiiged with the latter.

WARREN XV. GORE. 

